What is its raining its pouring?

"Itsy Bitsy Spider" is often confused with "It's Raining, It's Pouring," which are both popular English nursery rhymes. "It's Raining, It's Pouring" is a short and simple rhyme that goes:

"It's raining, it's pouring, The old man is snoring. He went to bed and bumped his head, And didn't get up in the morning."

The rhyme is often recited or sung by children, particularly during rainy weather. It is typically used to describe the sound of heavy rain and has been part of English-speaking culture for many years. The origin of the nursery rhyme is not well-documented, and like many traditional rhymes, it has been passed down through oral tradition. Its catchy tune and simple lyrics make it a favorite among young children.